body,
ul,
li {
    margin: 0;
    padding: 0;
    font: 12px/1.5 arial;
}

ul,
li {
    list-style: none;
}

.wrap {
    width: 100vw;
    margin: 20px auto;
}

.hide {
    display: none;
}

#tab_t {
    height: 25px;
    border-bottom: 1px solid #ccc;
    display: none;
}

#tab_t li {
    float: left;
    width: 80px;
    height: 24px;
    line-height: 24px;
    margin: 0 4px;
    text-align: center;
    border: 1px solid #ccc;
    border-bottom: none;
    background: #f5f5f5;
    cursor: pointer
}

#tab_t .act {
    position: relative;
    height: 25px;
    margin-bottom: -1px;
    background: #fff;
}

#tab_c {
    width: 100%;
}